despite improvements in treatment for asthma, the death rate from this disease has doubled during the past decade from its previous rate. two possible explanations for this increase have been offered. first, the recording of deaths due to asthma has become more widespread and accurate in the past decade than it had been previously. second, there has been an increase in urban pollution. however, since the rate of deaths due to asthma has increased dramatically even in cities with long-standing, comprehensive medical records and with little or no urban pollution, one must instead conclude that the cause of increased deaths is the use of bronchial inhalers by asthma sufferers to relieve their symptoms.
78. each of the following, if true, provides support to the argument except:
(a) urban populations have doubled in the past decade.
(b) records of asthma deaths are as accurate for the past twenty years as for the past ten years.
(c) evidence suggests that inhalers make the lungs more sensitive to irritation by airborne pollen.
(d) by temporarily relieving the symptoms of asthma, inhalers encourage sufferers to avoid more beneficial measures.
(e) ten years ago bronchial inhalers were not available as an asthma treatment.
答案是a, 但我认为d更为有理，烦请看看。
82. every photograph, because it involves the light rays that something emits hitting film, must in some obvious sense be true. but because it could always have been made to show things differently than it does, it cannot express the whole truth and, in that sense, is false. therefore, nothing can ever be definitively proved with a photograph.
which one of the following, if true, would cast doubt on the experimenters’ conclusion?
请问该题的五个选项是什么啊，下载的文章有点问题，选项搞错了。
